The average of a dataset is the sum of the dataset divided by the count of the dataset.
The average mass readings of students A and B is 80560g
Given that:
[tex]Student\ A: 80,560\ 80,555\ 80,565[/tex]
[tex]Student\ B: 80,400\ 79,551\ 81,729[/tex]
The average mass is calculated using average formula
[tex]\bar x = \frac{\sum x}{n}[/tex]
For both students
[tex]n = 3[/tex] --- the number of mass readings
So, we have:
Student A
[tex]\bar x_A = \frac{80560 + 80555 + 80565 }{3}[/tex]
[tex]\bar x_A = \frac{241680}{3}[/tex]
[tex]\bar x_A = 80560g[/tex]
Student B
[tex]\bar x_B = \frac{80400+ 79551+ 81729}{3}[/tex]
[tex]\bar x_B = \frac{241680}{3}[/tex]
[tex]\bar x_B = 80560g[/tex]
Hence, the average mass readings of both students is 80560g
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